Gong-bell



. (Model.)

E. C.V BARTON.

GONG BELL.

180.881,80?. PatentedApr. 28, 1887.

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UNITE@ STATES PATENT Orricno ELIJAH C. BARTON, `OF EAST HAMPTON, CONNECTICUT. f

' GONG-BELL.

SPECIFICATION forming part of Letters Patent Nm 361,807, dated April 26, 1887-.

Y Application tiled July 23,1885. Serial No. |7144?. (Model.)

To all whom, it may concern.-

Beit known that I, ELIJAH C. BARTON, of East Hampton, in the county of Middlesex and State of Connecticut,have invented certain new and useful Improvements in Gong-Bells, of which the following isa description, reference being had to the accompanying drawings, wherein- Figure 1 is a plan view of the base-plate of one of my improved bells with the gong removed, one position of the hammer and striking mechanism being shown in dotted outlines. Fig. 2 is a side view of my improvedbell, lookingvfrom the left, the gong being shown in dotted outline. Fig. 3 is a view of the same in section lengthwise through the lever-shaft. Fig. 4is a front view of a door-plate, showing the relative arrangement of the bell-1everand the retaining-plate, in this case the name-plate.

My invention relates to the class of bells known as gong-bells; and it consists in the combination of the several parts making up the striking mechanism, and in details of one or more of them, as more particularly hereinafter described.

In the accompanying drawings, the letter c denotes the base-plate of the bell, which is preferably of metal cast to shape; b, the central standard that supportsthe gong e; d, the hammer pivotally supported on the plate, near one side thereof, with the tongue e', having the oblong loop or slot e', in which works the outer end of the mainspring f, the inner end of it being fast to the base-plate or standard. This cam-slot e is preferably formed by the angular bend in the wire, as shown in the drawings; but it may be obviously formed in any other convenient manner. This loop has on its opposite sides the cams so placed with relation to each other that the end of the sliding link that serves to connect the spring f with the tongue on one side and the bell-wire or crank-arm on the other side may be slid past each other, and the distance between the ends of the cams is sufficient to allow the end of the spring or link and of the bell-wire, respectively, to reach the end of the cam at about the same time that the side of the tongue-lever encounters the stop g or g. In the form shown the tongue is made of wire, and its pivot is formed by Winding the wire in a spiral coil, the lower end of the coil being formed into an oblong loop, e, that is bent sharply at the ends of the loop, and is also bent about midwaynof the sides, substantially as shown in Fig. l of the drawings. This tongue is held in .place on the pivot by means of the bent pin g, which is fast to the baseplate and ovcrhangs the upper end of the coil in the tongue. The upright part of this pin forms a stop,agaiust which one side of the loop of the tongue strikes at one limit of the play of the tongue, and the other side of the loop strikes against the stop y at the opposite limit Y vof the play of the tongue.

and connects with this loop or slot, so that it may slide along its inner surface on the part not traversed by the end of the spring j'.

V My device is intended especially for use on a door, and when attached to one the belllever t' is preferably located just below the name-platej and under the edge of it, so that the plate servesto hold the lever and its spindle from being pulled out. This ofce, however, can plainly be as well served by a rose or collar.

The bell is rung by pushing downward upon the lever i, ythe crank-arm being thus turned and the tongue pulled over to the position shown in dotted outline in Fig. 1,' the peculiar shape of the loop (or of the slot, which is its equivalent) causing the tongue to move abruptly during the latter part of its movement and strike against the stop g', so as to throw the hammer violently against the gong and thus sound it. Vhile the tongue is being thus pulled over by the crank-arm theleverageofthe u.

mainspring is decreased by the slipping of its end along the loop (or slot) nearer to the pivotpost;` but as soon as the pressure on the lever is removed the recoil of the spring f pulls the tongue back with a constantly-increasing lever` age and a'iinal abrupt motion similar to that already made, butin the reverse direction, the,

end of the crank-arm sliding along in the loop or slot in the tongue to a point nearer the pivot-pin.

The link k is inserted through theHauged IOC edge of the base-plate .and looped about the bend of the crank-arm, so as toadapt the bell to be used as a pull-bell as well as a lever-bell, the bell pull or Wire being connected to the outer end of the link.

It is obvious that the several parts of my device are capable of change in their arrangev ment Without departing from my invention,

the main feature being the use of the tongue with the Apeculiar angular slot, so connected with the mainspring and the pull as to change theleverage of the power to move the tongue and aid in producing the abrupt termination of the stroke of the hammer, and where a single stroke only is desired,instead of the double one of the device herein described, one side only of the loop or slot in combination with the pull and spring needbe used.

It is desirable to use a comparatively light spring, and this is better accomplished by inserting a short link between the end of the spring and the loop or slot in the tongue, and by the use of a similar short link between the link and crank-arm the latter may be made straighter, lighter, and shorter, the whole operating equally as well as in the form shown in the drawings.

Iam aware that it is not new to connect the spring or operating-pull directly with theloop in gong-bells of this class, and that it is not new to combine or to use a stop for the tongue at each limit of its play in combination with the swinging tongue, and such I do not broadly claim. l

' I claim as my improvement- In a gong-bell,`in combination with a baseplate and sounding-shell, a swinging hammer with a tongue, e, having` an oblong cam slot or loop, e', with an angular bend in the side parts of the loop or slot, and the mainspring connected on one side of the loop, and the bell- 'pull connected on the other side of the loop, 

